<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.9.1"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Qwt User&#39;s Guide: qwt_raster_data.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">Qwt User&#39;s Guide
   &#160;<span id="projectnumber">6.2.0</span>
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.1 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search','.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(function() {
  initMenu('',true,false,'search.php','Search');
  $(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('qwt__raster__data_8cpp_source.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="headertitle">
<div class="title">qwt_raster_data.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_raster_data.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_point_3d.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;qwt_interval.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160; </div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;qrect.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;qpolygon.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;qnumeric.h&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;qlist.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;qmap.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="keyword">class </span>QwtRasterData::ContourPlane</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;{</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    <span class="keyword">explicit</span> <span class="keyword">inline</span> ContourPlane( <span class="keywordtype">double</span> z ):</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;        m_z( z )</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    {</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    }</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">bool</span> intersect( <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a> vertex[3],</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        QPointF line[2], <span class="keywordtype">bool</span> ignoreOnPlane ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">double</span> z()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_z; }</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160; </div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">int</span> compare( <span class="keywordtype">double</span> z ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keyword">inline</span> QPointF intersection(</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a>&amp; p1, <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a>&amp; p2 ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160; </div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <span class="keywordtype">double</span> m_z;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;};</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> QwtRasterData::ContourPlane::intersect(</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a> vertex[3], QPointF line[2],</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="keywordtype">bool</span> ignoreOnPlane )<span class="keyword"> const</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keywordtype">bool</span> found = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="comment">// Are the vertices below (-1), on (0) or above (1) the plan ?</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> eq1 = compare( vertex[0].z() );</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> eq2 = compare( vertex[1].z() );</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> eq3 = compare( vertex[2].z() );</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160; </div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">        (a) All the vertices lie below the contour level.</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">        (b) Two vertices lie below and one on the contour level.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">        (c) Two vertices lie below and one above the contour level.</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">        (d) One vertex lies below and two on the contour level.</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">        (e) One vertex lies below, one on and one above the contour level.</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">        (f) One vertex lies below and two above the contour level.</span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">        (g) Three vertices lie on the contour level.</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment">        (h) Two vertices lie on and one above the contour level.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">        (i) One vertex lies on and two above the contour level.</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">        (j) All the vertices lie above the contour level.</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> tab[3][3][3] =</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="comment">// jump table to avoid nested case statements</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        { { 0, 0, 8 }, { 0, 2, 5 }, { 7, 6, 9 } },</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        { { 0, 3, 4 }, { 1, 10, 1 }, { 4, 3, 0 } },</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        { { 9, 6, 7 }, { 5, 2, 0 }, { 8, 0, 0 } }</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    };</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> edgeType = tab[eq1 + 1][eq2 + 1][eq3 + 1];</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keywordflow">switch</span> ( edgeType )</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    {</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            <span class="comment">// d(0,0,-1), h(0,0,1)</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;            line[0] = vertex[0].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;            line[1] = vertex[1].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            <span class="comment">// d(-1,0,0), h(1,0,0)</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            line[0] = vertex[1].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;            line[1] = vertex[2].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="keywordflow">case</span> 3:</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;            <span class="comment">// d(0,-1,0), h(0,1,0)</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;            line[0] = vertex[2].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;            line[1] = vertex[0].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keywordflow">case</span> 4:</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;            <span class="comment">// e(0,-1,1), e(0,1,-1)</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            line[0] = vertex[0].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            line[1] = intersection( vertex[1], vertex[2] );</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="keywordflow">case</span> 5:</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            <span class="comment">// e(-1,0,1), e(1,0,-1)</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;            line[0] = vertex[1].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;            line[1] = intersection( vertex[2], vertex[0] );</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        <span class="keywordflow">case</span> 6:</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;            <span class="comment">// e(-1,1,0), e(1,0,-1)</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;            line[0] = vertex[2].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            line[1] = intersection( vertex[0], vertex[1] );</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        <span class="keywordflow">case</span> 7:</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;            <span class="comment">// c(-1,1,-1), f(1,1,-1)</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;            line[0] = intersection( vertex[0], vertex[1] );</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            line[1] = intersection( vertex[1], vertex[2] );</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        <span class="keywordflow">case</span> 8:</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            <span class="comment">// c(-1,-1,1), f(1,1,-1)</span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;            line[0] = intersection( vertex[1], vertex[2] );</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;            line[1] = intersection( vertex[2], vertex[0] );</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="keywordflow">case</span> 9:</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;            <span class="comment">// f(-1,1,1), c(1,-1,-1)</span></div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;            line[0] = intersection( vertex[2], vertex[0] );</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;            line[1] = intersection( vertex[0], vertex[1] );</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="keywordflow">case</span> 10:</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            <span class="comment">// g(0,0,0)</span></div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;            <span class="comment">// The CONREC algorithm has no satisfying solution for</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;            <span class="comment">// what to do, when all vertices are on the plane.</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;            <span class="keywordflow">if</span> ( ignoreOnPlane )</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                found = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;            {</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                line[0] = vertex[2].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                line[1] = vertex[0].<a class="code" href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">toPoint</a>();</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            }</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            found = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    }</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160; </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="keywordflow">return</span> found;</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;}</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> QwtRasterData::ContourPlane::compare( <span class="keywordtype">double</span> z )<span class="keyword"> const</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <span class="keywordflow">if</span> ( z &gt; m_z )</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <span class="keywordflow">if</span> ( z &lt; m_z )</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;}</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="keyword">inline</span> QPointF QwtRasterData::ContourPlane::intersection(</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a>&amp; p1, <span class="keyword">const</span> <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a>&amp; p2 )<span class="keyword"> const</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> h1 = p1.<a class="code" href="class_qwt_point3_d.html#a0741e74f4f553e99e6abbc18aa7d541c">z</a>() - m_z;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> h2 = p2.<a class="code" href="class_qwt_point3_d.html#a0741e74f4f553e99e6abbc18aa7d541c">z</a>() - m_z;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160; </div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> x = ( h2 * p1.<a class="code" href="class_qwt_point3_d.html#ac0aeba53b7fb6c297b51b8d123699c1f">x</a>() - h1 * p2.<a class="code" href="class_qwt_point3_d.html#ac0aeba53b7fb6c297b51b8d123699c1f">x</a>() ) / ( h2 - h1 );</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> y = ( h2 * p1.<a class="code" href="class_qwt_point3_d.html#a2de6393c8dca6befa27098c8e7db552e">y</a>() - h1 * p2.<a class="code" href="class_qwt_point3_d.html#a2de6393c8dca6befa27098c8e7db552e">y</a>() ) / ( h2 - h1 );</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160; </div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <span class="keywordflow">return</span> QPointF( x, y );</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;}</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;<span class="keyword">class </span>QwtRasterData::PrivateData</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;{</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <a class="code" href="class_qwt_raster_data.html#a6f5308c40f5394e3956cf0c03d75f2c6">QwtRasterData::Attributes</a> attributes;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;};</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160; </div>
<div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a0fc20e05a794c0dc85f6ae5719566588">  171</a></span>&#160;<a class="code" href="class_qwt_raster_data.html#a0fc20e05a794c0dc85f6ae5719566588">QwtRasterData::QwtRasterData</a>()</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;{</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    m_data = <span class="keyword">new</span> PrivateData();</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;}</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; </div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a95b24c7cad42c5f7947e64e990def3e8">  177</a></span>&#160;<a class="code" href="class_qwt_raster_data.html#a95b24c7cad42c5f7947e64e990def3e8">QwtRasterData::~QwtRasterData</a>()</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;{</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;}</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160; </div>
<div class="line"><a name="l00189"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#aa4f0f8b9dcdc1f4ceef4429dd132f492">  189</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_raster_data.html#aa4f0f8b9dcdc1f4ceef4429dd132f492">QwtRasterData::setAttribute</a>( <a class="code" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a> attribute, <span class="keywordtype">bool</span> on )</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;{</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    <span class="keywordflow">if</span> ( on )</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        m_data-&gt;attributes |= attribute;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        m_data-&gt;attributes &amp;= ~attribute;</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;}</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a0df063cd367b161526429b671b0adebf">  201</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_raster_data.html#a0df063cd367b161526429b671b0adebf">QwtRasterData::testAttribute</a>( <a class="code" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a> attribute )<span class="keyword"> const</span></div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;attributes &amp; attribute;</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;}</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160; </div>
<div class="line"><a name="l00221"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">  221</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">QwtRasterData::initRaster</a>( <span class="keyword">const</span> QRectF&amp; area, <span class="keyword">const</span> QSize&amp; raster )</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;{</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    Q_UNUSED( area );</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    Q_UNUSED( raster );</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;}</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160; </div>
<div class="line"><a name="l00237"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">  237</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">QwtRasterData::discardRaster</a>()</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;{</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;}</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160; </div>
<div class="line"><a name="l00267"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a0557ff0444301b1c6dd9277d857d7ee7">  267</a></span>&#160;QRectF <a class="code" href="class_qwt_raster_data.html#a0557ff0444301b1c6dd9277d857d7ee7">QwtRasterData::pixelHint</a>( <span class="keyword">const</span> QRectF&amp; area )<span class="keyword"> const</span></div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;    Q_UNUSED( area );</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    <span class="keywordflow">return</span> QRectF();</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;}</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160; </div>
<div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">  286</a></span>&#160;<a class="code" href="class_q_map.html">QwtRasterData::ContourLines</a> <a class="code" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">QwtRasterData::contourLines</a>(</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <span class="keyword">const</span> QRectF&amp; rect, <span class="keyword">const</span> QSize&amp; raster,</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_q_list.html">QList&lt; double &gt;</a>&amp; levels, <a class="code" href="class_qwt_raster_data.html#a32c7f179e655dcc2fca1fdb851c1570e">ConrecFlags</a> flags )<span class="keyword"> const</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    <a class="code" href="class_q_map.html">ContourLines</a> <a class="code" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">contourLines</a>;</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160; </div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;    <span class="keywordflow">if</span> ( levels.size() == 0 || !rect.isValid() || !raster.isValid() )</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">contourLines</a>;</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160; </div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dx = rect.width() / raster.width();</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dy = rect.height() / raster.height();</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> ignoreOnPlane =</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;        flags &amp; <a class="code" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dccafd2f6337e825201a247408f033713c92">QwtRasterData::IgnoreAllVerticesOnLevel</a>;</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160; </div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> range = <a class="code" href="class_qwt_raster_data.html#abe716e1d7ba8b5319c98995cd34c952e">interval</a>( Qt::ZAxis );</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;    <span class="keywordtype">bool</span> ignoreOutOfRange = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    <span class="keywordflow">if</span> ( range.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() )</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        ignoreOutOfRange = flags &amp; <a class="code" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcca18e8d1de171dd43cc957c279eb03d32c">IgnoreOutOfRange</a>;</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160; </div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a>* that = <span class="keyword">const_cast&lt;</span> <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a>* <span class="keyword">&gt;</span>( this );</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    that-&gt;<a class="code" href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">initRaster</a>( rect, raster );</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160; </div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = 0; y &lt; raster.height() - 1; y++ )</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;    {</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;        <span class="keyword">enum</span> Position</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        {</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            Center,</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160; </div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;            TopLeft,</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;            TopRight,</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;            BottomRight,</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;            BottomLeft,</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160; </div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;            NumPositions</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;        };</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160; </div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;        <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a> xy[NumPositions];</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160; </div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = 0; x &lt; raster.width() - 1; x++ )</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;        {</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;            <span class="keyword">const</span> QPointF pos( rect.x() + x * dx, rect.y() + y * dy );</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160; </div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;            <span class="keywordflow">if</span> ( x == 0 )</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;            {</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;                xy[TopRight].<a class="code" href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">setX</a>( pos.x() );</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;                xy[TopRight].<a class="code" href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">setY</a>( pos.y() );</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;                xy[TopRight].<a class="code" href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">setZ</a>(</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;                    <a class="code" href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">value</a>( xy[TopRight].x(), xy[TopRight].y() )</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;                    );</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160; </div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;                xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">setX</a>( pos.x() );</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;                xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">setY</a>( pos.y() + dy );</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;                xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">setZ</a>(</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;                    <a class="code" href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">value</a>( xy[BottomRight].x(), xy[BottomRight].y() )</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;                    );</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;            }</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160; </div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;            xy[TopLeft] = xy[TopRight];</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;            xy[BottomLeft] = xy[BottomRight];</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160; </div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;            xy[TopRight].<a class="code" href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">setX</a>( pos.x() + dx );</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;            xy[TopRight].<a class="code" href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">setY</a>( pos.y() );</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;            xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">setX</a>( pos.x() + dx );</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;            xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">setY</a>( pos.y() + dy );</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160; </div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;            xy[TopRight].<a class="code" href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">setZ</a>(</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;                <a class="code" href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">value</a>( xy[TopRight].x(), xy[TopRight].y() )</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;                );</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;            xy[BottomRight].<a class="code" href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">setZ</a>(</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;                <a class="code" href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">value</a>( xy[BottomRight].x(), xy[BottomRight].y() )</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;                );</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160; </div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;            <span class="keywordtype">double</span> zMin = xy[TopLeft].<a class="code" href="class_qwt_point3_d.html#a0741e74f4f553e99e6abbc18aa7d541c">z</a>();</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;            <span class="keywordtype">double</span> zMax = zMin;</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;            <span class="keywordtype">double</span> zSum = zMin;</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160; </div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = TopRight; i &lt;= BottomLeft; i++ )</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;            {</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">double</span> z = xy[i].<a class="code" href="class_qwt_point3_d.html#a0741e74f4f553e99e6abbc18aa7d541c">z</a>();</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160; </div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;                zSum += z;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;                <span class="keywordflow">if</span> ( z &lt; zMin )</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;                    zMin = z;</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;                <span class="keywordflow">if</span> ( z &gt; zMax )</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;                    zMax = z;</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;            }</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160; </div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;            <span class="keywordflow">if</span> ( qIsNaN( zSum ) )</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;            {</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;                <span class="comment">// one of the points is NaN</span></div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;            }</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160; </div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;            <span class="keywordflow">if</span> ( ignoreOutOfRange )</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;            {</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;                <span class="keywordflow">if</span> ( !range.<a class="code" href="class_qwt_interval.html#ae6a7b6025679010bad8e0a6ade4a2eec">contains</a>( zMin ) || !range.<a class="code" href="class_qwt_interval.html#ae6a7b6025679010bad8e0a6ade4a2eec">contains</a>( zMax ) )</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;                    <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;            }</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160; </div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;            <span class="keywordflow">if</span> ( zMax &lt; levels[0] ||</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;                zMin &gt; levels[levels.size() - 1] )</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;            {</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;            }</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160; </div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;            xy[Center].<a class="code" href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">setX</a>( pos.x() + 0.5 * dx );</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;            xy[Center].<a class="code" href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">setY</a>( pos.y() + 0.5 * dy );</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;            xy[Center].<a class="code" href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">setZ</a>( 0.25 * zSum );</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160; </div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> numLevels = levels.size();</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> l = 0; l &lt; numLevels; l++ )</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;            {</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">double</span> level = levels[l];</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;                <span class="keywordflow">if</span> ( level &lt; zMin || level &gt; zMax )</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;                    <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;                QPolygonF&amp; lines = <a class="code" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">contourLines</a>[level];</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;                <span class="keyword">const</span> ContourPlane plane( level );</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160; </div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;                QPointF line[2];</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;                <a class="code" href="class_qwt_point3_d.html">QwtPoint3D</a> vertex[3];</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160; </div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;                <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> m = TopLeft; m &lt; NumPositions; m++ )</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;                {</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;                    vertex[0] = xy[m];</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;                    vertex[1] = xy[0];</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;                    vertex[2] = xy[m != BottomLeft ? m + 1 : TopLeft];</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160; </div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;                    <span class="keyword">const</span> <span class="keywordtype">bool</span> intersects =</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;                        plane.intersect( vertex, line, ignoreOnPlane );</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;                    <span class="keywordflow">if</span> ( intersects )</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;                    {</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;                        lines += line[0];</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;                        lines += line[1];</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;                    }</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;                }</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;            }</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;        }</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;    }</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160; </div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;    that-&gt;<a class="code" href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">discardRaster</a>();</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160; </div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">contourLines</a>;</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;}</div>
<div class="ttc" id="aclass_q_list_html"><div class="ttname"><a href="class_q_list.html">QList&lt; double &gt;</a></div></div>
<div class="ttc" id="aclass_q_map_html"><div class="ttname"><a href="class_q_map.html">QMap</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__compass_8h_source.html#l00019">qwt_compass.h:19</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html"><div class="ttname"><a href="class_qwt_interval.html">QwtInterval</a></div><div class="ttdoc">A class representing an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00022">qwt_interval.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ad742235a737d4d0b12cba1cab2df55f3"><div class="ttname"><a href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">QwtInterval::isValid</a></div><div class="ttdeci">bool isValid() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00210">qwt_interval.h:210</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ae6a7b6025679010bad8e0a6ade4a2eec"><div class="ttname"><a href="class_qwt_interval.html#ae6a7b6025679010bad8e0a6ade4a2eec">QwtInterval::contains</a></div><div class="ttdeci">bool contains(double value) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8cpp_source.html#l00067">qwt_interval.cpp:67</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html"><div class="ttname"><a href="class_qwt_point3_d.html">QwtPoint3D</a></div><div class="ttdoc">QwtPoint3D class defines a 3D point in double coordinates.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00022">qwt_point_3d.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_a0741e74f4f553e99e6abbc18aa7d541c"><div class="ttname"><a href="class_qwt_point3_d.html#a0741e74f4f553e99e6abbc18aa7d541c">QwtPoint3D::z</a></div><div class="ttdeci">double z() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00115">qwt_point_3d.h:115</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_a2de6393c8dca6befa27098c8e7db552e"><div class="ttname"><a href="class_qwt_point3_d.html#a2de6393c8dca6befa27098c8e7db552e">QwtPoint3D::y</a></div><div class="ttdeci">double y() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00109">qwt_point_3d.h:109</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_a986ba13d44e6960b4fb72795be4ff66a"><div class="ttname"><a href="class_qwt_point3_d.html#a986ba13d44e6960b4fb72795be4ff66a">QwtPoint3D::setY</a></div><div class="ttdeci">void setY(double y)</div><div class="ttdoc">Sets the y-coordinate of the point to the value specified by y.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00145">qwt_point_3d.h:145</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_ac0aeba53b7fb6c297b51b8d123699c1f"><div class="ttname"><a href="class_qwt_point3_d.html#ac0aeba53b7fb6c297b51b8d123699c1f">QwtPoint3D::x</a></div><div class="ttdeci">double x() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00103">qwt_point_3d.h:103</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_ae4bed4f5b955843dcf92302b16799e8b"><div class="ttname"><a href="class_qwt_point3_d.html#ae4bed4f5b955843dcf92302b16799e8b">QwtPoint3D::setZ</a></div><div class="ttdeci">void setZ(double y)</div><div class="ttdoc">Sets the z-coordinate of the point to the value specified by z.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00151">qwt_point_3d.h:151</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_afe791f507fa07860314ceefa04974629"><div class="ttname"><a href="class_qwt_point3_d.html#afe791f507fa07860314ceefa04974629">QwtPoint3D::toPoint</a></div><div class="ttdeci">QPointF toPoint() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00159">qwt_point_3d.h:159</a></div></div>
<div class="ttc" id="aclass_qwt_point3_d_html_afe85919187fd62bc3db082d1e2b17bac"><div class="ttname"><a href="class_qwt_point3_d.html#afe85919187fd62bc3db082d1e2b17bac">QwtPoint3D::setX</a></div><div class="ttdeci">void setX(double x)</div><div class="ttdoc">Sets the x-coordinate of the point to the value specified by x.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__3d_8h_source.html#l00139">qwt_point_3d.h:139</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html"><div class="ttname"><a href="class_qwt_raster_data.html">QwtRasterData</a></div><div class="ttdoc">QwtRasterData defines an interface to any type of raster data.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00042">qwt_raster_data.h:43</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a0557ff0444301b1c6dd9277d857d7ee7"><div class="ttname"><a href="class_qwt_raster_data.html#a0557ff0444301b1c6dd9277d857d7ee7">QwtRasterData::pixelHint</a></div><div class="ttdeci">virtual QRectF pixelHint(const QRectF &amp;) const</div><div class="ttdoc">Pixel hint.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00267">qwt_raster_data.cpp:267</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a0df063cd367b161526429b671b0adebf"><div class="ttname"><a href="class_qwt_raster_data.html#a0df063cd367b161526429b671b0adebf">QwtRasterData::testAttribute</a></div><div class="ttdeci">bool testAttribute(Attribute) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00201">qwt_raster_data.cpp:201</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a0fc20e05a794c0dc85f6ae5719566588"><div class="ttname"><a href="class_qwt_raster_data.html#a0fc20e05a794c0dc85f6ae5719566588">QwtRasterData::QwtRasterData</a></div><div class="ttdeci">QwtRasterData()</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00171">qwt_raster_data.cpp:171</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a32c7f179e655dcc2fca1fdb851c1570e"><div class="ttname"><a href="class_qwt_raster_data.html#a32c7f179e655dcc2fca1fdb851c1570e">QwtRasterData::ConrecFlags</a></div><div class="ttdeci">QFlags&lt; ConrecFlag &gt; ConrecFlags</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00086">qwt_raster_data.h:86</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a369a5f525814bf569e01f88fbd8ddb5b"><div class="ttname"><a href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">QwtRasterData::discardRaster</a></div><div class="ttdeci">virtual void discardRaster()</div><div class="ttdoc">Discard a raster.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00237">qwt_raster_data.cpp:237</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a6396fc013fcec893b1e8cea4cf03691e"><div class="ttname"><a href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">QwtRasterData::value</a></div><div class="ttdeci">virtual double value(double x, double y) const =0</div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a64f5bf40b6138cc66719a56555c03589"><div class="ttname"><a href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">QwtRasterData::initRaster</a></div><div class="ttdeci">virtual void initRaster(const QRectF &amp;, const QSize &amp;raster)</div><div class="ttdoc">Initialize a raster.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00221">qwt_raster_data.cpp:221</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a6f5308c40f5394e3956cf0c03d75f2c6"><div class="ttname"><a href="class_qwt_raster_data.html#a6f5308c40f5394e3956cf0c03d75f2c6">QwtRasterData::Attributes</a></div><div class="ttdeci">QFlags&lt; Attribute &gt; Attributes</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00074">qwt_raster_data.h:74</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a79e1f7503d18b9f42abc51a0446924f6"><div class="ttname"><a href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">QwtRasterData::contourLines</a></div><div class="ttdeci">virtual ContourLines contourLines(const QRectF &amp;rect, const QSize &amp;raster, const QList&lt; double &gt; &amp;levels, ConrecFlags) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00286">qwt_raster_data.cpp:286</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_a95b24c7cad42c5f7947e64e990def3e8"><div class="ttname"><a href="class_qwt_raster_data.html#a95b24c7cad42c5f7947e64e990def3e8">QwtRasterData::~QwtRasterData</a></div><div class="ttdeci">virtual ~QwtRasterData()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00177">qwt_raster_data.cpp:177</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_aa4f0f8b9dcdc1f4ceef4429dd132f492"><div class="ttname"><a href="class_qwt_raster_data.html#aa4f0f8b9dcdc1f4ceef4429dd132f492">QwtRasterData::setAttribute</a></div><div class="ttdeci">void setAttribute(Attribute, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8cpp_source.html#l00189">qwt_raster_data.cpp:189</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_aa9a0ea0f92af158a354421c3651fdfaf"><div class="ttname"><a href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">QwtRasterData::Attribute</a></div><div class="ttdeci">Attribute</div><div class="ttdoc">Raster data attributes.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00054">qwt_raster_data.h:55</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_abe716e1d7ba8b5319c98995cd34c952e"><div class="ttname"><a href="class_qwt_raster_data.html#abe716e1d7ba8b5319c98995cd34c952e">QwtRasterData::interval</a></div><div class="ttdeci">virtual QwtInterval interval(Qt::Axis) const =0</div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_ac0053b66315fde6f0a9a69c40d7c5dcca18e8d1de171dd43cc957c279eb03d32c"><div class="ttname"><a href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcca18e8d1de171dd43cc957c279eb03d32c">QwtRasterData::IgnoreOutOfRange</a></div><div class="ttdeci">@ IgnoreOutOfRange</div><div class="ttdoc">Ignore all values, that are out of range.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00084">qwt_raster_data.h:83</a></div></div>
<div class="ttc" id="aclass_qwt_raster_data_html_ac0053b66315fde6f0a9a69c40d7c5dccafd2f6337e825201a247408f033713c92"><div class="ttname"><a href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dccafd2f6337e825201a247408f033713c92">QwtRasterData::IgnoreAllVerticesOnLevel</a></div><div class="ttdeci">@ IgnoreAllVerticesOnLevel</div><div class="ttdoc">Ignore all vertices on the same level.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__raster__data_8h_source.html#l00080">qwt_raster_data.h:80</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><b>qwt_raster_data.cpp</b></li>
    <li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.1 </li>
  </ul>
</div>
</body>
</html>
